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For some birds the sense of smell appears to play a role in [#permalink]

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16 Nov 2004, 00:15

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

0%(00:00) correct
0%(00:00) wrong based on 0 sessions

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For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.
(A) were found to have increased difficulties
(B) have been found to have increased difficulty
(C) were found to have increasing difficulty
(D) had been found to have increased difficulties
(E) have been found to have increasing difficulties

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16 Nov 2004, 14:48

wunderbar03 wrote:

For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.(A) were found to have increased difficulties(B) have been found to have increased difficulty(C) were found to have increasing difficulty(D) had been found to have increased difficulties(E) have been found to have increasing difficulties

I agree with gayathri - B. 'increased difficulties' does not sound right. Also, C and E - 'increasing difficulty' sounds like the the difficulty level is continuing to increase/rise, where as the statement made before does not imply that. I think I am right - What is the OA?

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29 May 2005, 16:40

wunderbar03 wrote:

For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.(A) were found to have increased difficulties(B) have been found to have increased difficulty(C) were found to have increasing difficulty(D) had been found to have increased difficulties(E) have been found to have increasing difficulties

Have been and have increased are required to indicate that the pigeons still have difficulty in homing